Blog Comments, etc

Hi all - I've changed the settings on the blog. If you would like to comment on a posting, you will need to join as a follower. I was finding that people I've never heard of, sometimes from across the world, were posting links to sites that we do not know. So, I thought I'd add an extra step and hopefully avoid a little more spam. So, please join up and comment. Let me know if you have any problems or suggestions.